اطمینان و امکان - عدم امکان

used to say that the chances of something happening or being true are very slim

هرگز

the slightest chance of something happening or being true

احتمال نزدیک به صفر

something that seems impossible to occur

غیر ممکن

used to refer to something that cannot be done or obtained in any way

هیچ جوره

something that is very good or desirable but highly unlikely to happen or be real

رویا واهی

used to refer to something that is impossible or is extremely hard to imagine or obtain

به هیچ عنوان

used to emphasize that under no circumstances would one do something or something would happen

عمراً

used to say that an offer or possibility is not renewable or available any more

کار از کار گذشته

to be unable to do or finish something without being harmed or suffering its consequences

گران تمام شدن

the time when it becomes impossible for one to return to a previous place or state or to make a different decision

راهی که بازگشت ندارد

not allowed or possible

نشدنی

said to mean that it is impossible for something to ever happen

مگه پشت گوشت رو ببینی

used to express disbelief in something happening

وقت‌ گل نی

used for saying that it is completely unlikely that something ever happens

هرگز

used to say that one thinks that something will never happen

عمرا

used to show that one will do whatever one can to stop something from happening

مگر از روی جنازه‌ام رد شوی

to desire what cannot be achieved

خیال خام در سر پروراندن

(of a proposal, topic, or offer) unavailable or incapable of being considered

منتفی

a hope or wish that cannot be realized or fulfilled

آرزوی محال

used to emphasize that something is completely impossible or prohibited

غیرممکن